Robin Gareus
4050ca5633
Copyright-holder and year information is extracted from git log. git history begins in 2005. So (C) from 1998..2005 is lost. Also some (C) assignment of commits where the committer didn't use --author.
87 lines
2.2 KiB
C++
87 lines
2.2 KiB
C++
/*
|
|
* Copyright (C) 2009-2012 David Robillard <d@drobilla.net>
|
|
* Copyright (C) 2016 Robin Gareus <robin@gareus.org>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along
|
|
* with this program; if not, write to the Free Software Foundation, Inc.,
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*/
|
|
|
|
#ifndef __ardour_fft_result_h
|
|
#define __ardour_fft_result_h
|
|
|
|
#include <math.h>
|
|
#include <fftw3.h>
|
|
|
|
#include <gdkmm/color.h>
|
|
|
|
#include <string>
|
|
|
|
class FFTGraph;
|
|
|
|
class FFTResult
|
|
{
|
|
public:
|
|
|
|
~FFTResult ();
|
|
|
|
void analyzeWindow (float *window);
|
|
void finalize ();
|
|
|
|
unsigned int length () const { return _dataSize; }
|
|
|
|
float avgAt (unsigned int x, bool p) const
|
|
{ return p ? _data_prop_avg[x] : _data_flat_avg[x]; }
|
|
float maxAt (unsigned int x, bool p) const
|
|
{ return p ? _data_prop_max[x] : _data_flat_max[x]; }
|
|
float minAt (unsigned int x, bool p) const
|
|
{ return p ? _data_prop_min[x] : _data_flat_min[x]; }
|
|
|
|
float minimum (bool p) const
|
|
{ return p ? _min_prop : _min_flat; }
|
|
float maximum (bool p) const
|
|
{ return p ? _max_prop : _max_flat; }
|
|
|
|
const Gdk::Color& get_color () const { return _color; }
|
|
|
|
private:
|
|
FFTResult (FFTGraph *graph, Gdk::Color color, std::string trackname);
|
|
friend class FFTGraph;
|
|
|
|
int _averages;
|
|
|
|
float* _data_flat_avg;
|
|
float* _data_flat_max;
|
|
float* _data_flat_min;
|
|
float* _data_prop_avg;
|
|
float* _data_prop_max;
|
|
float* _data_prop_min;
|
|
|
|
unsigned int _windowSize;
|
|
unsigned int _dataSize;
|
|
|
|
float _min_flat;
|
|
float _max_flat;
|
|
float _min_prop;
|
|
float _max_prop;
|
|
|
|
FFTGraph *_graph;
|
|
|
|
Gdk::Color _color;
|
|
std::string _trackname;
|
|
|
|
static float power_to_db (float v) { return v > 1e-20 ? 10.0f * log10f (v) : -200.0f; }
|
|
};
|
|
|
|
#endif /* __ardour_fft_result_h */
|